US4384477A - Sensing device - Google Patents

Sensing device Download PDF

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Publication number
US4384477A
US4384477A US06/197,953 US19795380A US4384477A US 4384477 A US4384477 A US 4384477A US 19795380 A US19795380 A US 19795380A US 4384477 A US4384477 A US 4384477A
Authority
US
United States
Prior art keywords
mounting surface
sensing
liquid
sensing elements
floatation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/197,953
Other languages
English (en)
Inventor
Ralph A. Perry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emerson Electric Co
Original Assignee
Emhart Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Emhart Industries Inc filed Critical Emhart Industries Inc
Priority to US06/197,953 priority Critical patent/US4384477A/en
Priority to CA000380230A priority patent/CA1182170A/en
Priority to AU72041/81A priority patent/AU536716B2/en
Priority to GB8120845A priority patent/GB2086053B/en
Priority to MX10135281U priority patent/MX5871E/es
Priority to FR8114865A priority patent/FR2492529A1/fr
Priority to JP56127654A priority patent/JPS5770438A/ja
Priority to DK364881A priority patent/DK364881A/da
Priority to IT8153556U priority patent/IT8153556V0/it
Priority to IT68147/81A priority patent/IT1144638B/it
Priority to NO812975A priority patent/NO812975L/no
Priority to SE8106028A priority patent/SE8106028L/
Priority to DE19813141211 priority patent/DE3141211A1/de
Assigned to EMHART INDUSTRIES, INC. reassignment EMHART INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PERRY, RALPH A.
Application granted granted Critical
Publication of US4384477A publication Critical patent/US4384477A/en
Assigned to EMERSON ELECTRIC CO. A CORP. OF MISSOURI reassignment EMERSON ELECTRIC CO. A CORP. OF MISSOURI ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EMHART INDUSTRIES, INC. A CORP. OF CONNECTICUT
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1826—Organic contamination in water
    • G01N33/1833—Oil in water

Definitions

  • the present invention generally relates to sensing devices employing floatation means for supporting a sensing element near the surface of a liquid and, in particular, to such devices as used for detecting hydrocarbon substances on the surface of ground water.
  • FIG. 2 is a top view of the member of FIG. 1;
  • FIG. 5 is a perspective view of the member of FIG. 4 shown in final form for use as a sensing element
  • FIG. 6 is a partially sectioned view taken along view line 6--6 of FIG. 2 of the sensing device member as shown in FIG. 3;
  • a central aperture 32 is located through the middle of the member 10 for allowing slidable mounting of the member 10 on a vertical member facilitating the ability of the member 10 to follow the level of the liquid or water being monitored.
  • FIG. 4 shows the sensing device 10 having an electrical conductor in the form of a ribbon cable 33 connected to the lands 28.
  • the cable 33 used for the present embodiment is available from Amp Incorporated under part No. 5107-1202-2.
  • the cable includes eight separate conductors 34 located along the edges of the cable 33 in pairs of four. Each of the conductors 34 has a terminal 35 connected to the end thereof which terminals 35 are soldered to the separate lands 28 at their ends 30.
  • the cable 33 is modified by the inclusion of a series of holes 36 located approximately midway between the folds of the cable. In the present embodiment, a guide cable (not shown) passes through the holes 36.
  • FIGS. 6 and 7 show partially sectional views of the sensing device member 10 having a plurality of sensing elements 22, 24 and 26 mounted thereon.
  • the sections are taken along view lines 6--6 of FIG. 2 and show two different means for mounting the sensing element 26, either of which means may be used for the other elements 20, 22 and 24.
  • the apertures 18 are shown as being plated through from the upper surface 16 to the lower mounting surface 12.
  • the sensing element 26 is mounted to the member 10 and electrically connected by the soldering of its leads 42 at the points 43 which points are the lower extremities of the plated through apertures 18.
  • the plating on the inside of apertures 18 is made as a part of the lands 28 located on the upper surface 16 and thus no further coupling is needed thereto.
  • the sensing elements 22, 24 and 26 are shown encased in electrical insulation 46.
  • the insulation shown is commonly known as shrink tubing and is available from Amp Incorporated under part No. 603342-1.
  • the tubing used is clear in color and has a minimized thickness to reduce desensitizing effects on the sensing elements.
  • tubing having a thickness of 0.015 inches (0.38 millimeters) or less is used. the ends of the tubing extend into a pair of recesses 48 located in the bottom mounting surface 12 and are sealed thereto by an epoxy sealant contained within said recesses 48.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Level Indicators Using A Float (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
US06/197,953 1980-10-17 1980-10-17 Sensing device Expired - Lifetime US4384477A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US06/197,953 US4384477A (en) 1980-10-17 1980-10-17 Sensing device
CA000380230A CA1182170A (en) 1980-10-17 1981-06-19 Sensing device
AU72041/81A AU536716B2 (en) 1980-10-17 1981-06-22 Sensing device
GB8120845A GB2086053B (en) 1980-10-17 1981-07-06 Sensing device
MX10135281U MX5871E (es) 1980-10-17 1981-07-24 Mejoras a un dispositivo electronico de percepcion para detectar por contacto directo la presencia de hidrocarburos en superficies acuosas
FR8114865A FR2492529A1 (fr) 1980-10-17 1981-07-30 Dispositif sensible destine a un appareil de detection d'une substance sur la surface d'un liquide
JP56127654A JPS5770438A (en) 1980-10-17 1981-08-14 Detector
DK364881A DK364881A (da) 1980-10-17 1981-08-17 Detektoraggregat
IT8153556U IT8153556V0 (it) 1980-10-17 1981-08-26 Dispositivo sensore utilizzabile in un apparecchiatura per la rivelazione della presenza di una sostanza alla superficie di un liquido
IT68147/81A IT1144638B (it) 1980-10-17 1981-08-26 Dispositivo sensore utilizzabile in un apparecchiatura per la revelazione della presenza di una sostanza alla superficie di un liquido
NO812975A NO812975L (no) 1980-10-17 1981-09-02 Detektor for anvendelse i et apparat for detektering av en substans paa en vaeskeoverflate
SE8106028A SE8106028L (sv) 1980-10-17 1981-10-12 Anordning for detektering av en substans pa en vetskeyta
DE19813141211 DE3141211A1 (de) 1980-10-17 1981-10-16 Sensoranordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/197,953 US4384477A (en) 1980-10-17 1980-10-17 Sensing device

Publications (1)

Publication Number Publication Date
US4384477A true US4384477A (en) 1983-05-24

Family

ID=22731415

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/197,953 Expired - Lifetime US4384477A (en) 1980-10-17 1980-10-17 Sensing device

Country Status (11)

Country Link
US (1) US4384477A (da)
JP (1) JPS5770438A (da)
AU (1) AU536716B2 (da)
CA (1) CA1182170A (da)
DE (1) DE3141211A1 (da)
DK (1) DK364881A (da)
FR (1) FR2492529A1 (da)
GB (1) GB2086053B (da)
IT (2) IT8153556V0 (da)
NO (1) NO812975L (da)
SE (1) SE8106028L (da)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725818A (en) * 1985-09-13 1988-02-16 Simplex Time Recorder Co. Walk through test system
US5514338A (en) * 1994-11-29 1996-05-07 One Plus Corp. Device for sensing liquid hydrocarbon
US20060205063A1 (en) * 2005-03-14 2006-09-14 Warren Ronald K Floor system for composting

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176611B (en) * 1985-06-20 1989-07-19 Thor Ceramics Ltd Constant temperature probe
FR2745417B1 (fr) 1996-02-23 1998-05-15 Fileca Foptica Procede et installation de fabrication de cables electriques isoles a revetement mince

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660194A (en) * 1952-08-09 1953-11-24 Us Rubber Co Expanded cellular plastic flotation body
US3720797A (en) * 1971-09-10 1973-03-13 K Gunn Gas fusing sensing device
US3918034A (en) * 1974-02-11 1975-11-04 Petrotek Oil detection and signaling system
US3946625A (en) * 1973-05-11 1976-03-30 Asahi Kasei Kogyo Kabushiki Kaisha Liquid detector
JPS5217891A (en) * 1975-06-28 1977-02-10 Nippon Sheet Glass Co Ltd Device for detection of efflux of ligh-shielding liquid
DE2601410A1 (de) * 1975-12-30 1977-07-21 Robert Heidenreich Inh Frank H Geraet zur anzeige von fluessigen, unloeslichen schichten auf leitenden fluessigkeiten
US4116045A (en) * 1976-12-20 1978-09-26 Potter Bronson M Oil detector
US4131773A (en) * 1976-03-24 1978-12-26 Texaco Inc. Apparatus for detecting presence of oil in a body of water
DE2837920A1 (de) * 1978-08-31 1980-03-13 Muennich Debus Hermann Mehrfachsonde zur unterscheidung verschiedener medien
US4221125A (en) * 1979-03-09 1980-09-09 Emhart Industries, Inc. Apparatus and method for detecting the presence of a substance on a liquid surface
US4223552A (en) * 1979-03-21 1980-09-23 Emhart Industries, Inc. Apparatus and method for sensing a substance on a liquid surface

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1399477A (fr) * 1964-06-25 1965-05-14 Dispositif indicateur sensible aux couches d'huile sur l'eau
US3552205A (en) * 1968-07-24 1971-01-05 Buzzards Corp Apparatus for measuring properties of a fluid body from an airborne vehicle
US4202203A (en) * 1977-08-24 1980-05-13 Potter Bronson M Oscillator detector
DE2739689C2 (de) * 1977-09-02 1986-10-16 Euratom Thermische Wärmepumpe

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660194A (en) * 1952-08-09 1953-11-24 Us Rubber Co Expanded cellular plastic flotation body
US3720797A (en) * 1971-09-10 1973-03-13 K Gunn Gas fusing sensing device
US3946625A (en) * 1973-05-11 1976-03-30 Asahi Kasei Kogyo Kabushiki Kaisha Liquid detector
US3918034A (en) * 1974-02-11 1975-11-04 Petrotek Oil detection and signaling system
JPS5217891A (en) * 1975-06-28 1977-02-10 Nippon Sheet Glass Co Ltd Device for detection of efflux of ligh-shielding liquid
DE2601410A1 (de) * 1975-12-30 1977-07-21 Robert Heidenreich Inh Frank H Geraet zur anzeige von fluessigen, unloeslichen schichten auf leitenden fluessigkeiten
US4131773A (en) * 1976-03-24 1978-12-26 Texaco Inc. Apparatus for detecting presence of oil in a body of water
US4116045A (en) * 1976-12-20 1978-09-26 Potter Bronson M Oil detector
DE2837920A1 (de) * 1978-08-31 1980-03-13 Muennich Debus Hermann Mehrfachsonde zur unterscheidung verschiedener medien
US4221125A (en) * 1979-03-09 1980-09-09 Emhart Industries, Inc. Apparatus and method for detecting the presence of a substance on a liquid surface
US4223552A (en) * 1979-03-21 1980-09-23 Emhart Industries, Inc. Apparatus and method for sensing a substance on a liquid surface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725818A (en) * 1985-09-13 1988-02-16 Simplex Time Recorder Co. Walk through test system
US5514338A (en) * 1994-11-29 1996-05-07 One Plus Corp. Device for sensing liquid hydrocarbon
US20060205063A1 (en) * 2005-03-14 2006-09-14 Warren Ronald K Floor system for composting

Also Published As

Publication number Publication date
GB2086053B (en) 1984-08-08
AU7204181A (en) 1982-04-22
DK364881A (da) 1982-04-18
FR2492529A1 (fr) 1982-04-23
AU536716B2 (en) 1984-05-17
DE3141211A1 (de) 1982-09-16
IT8153556V0 (it) 1981-08-26
NO812975L (no) 1982-04-19
JPS5770438A (en) 1982-04-30
IT8168147A0 (it) 1981-08-26
IT1144638B (it) 1986-10-29
GB2086053A (en) 1982-05-06
CA1182170A (en) 1985-02-05
FR2492529B1 (da) 1985-01-04
SE8106028L (sv) 1982-04-18

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Legal Events

Date Code Title Description
AS Assignment

Owner name: EMHART INDUSTRIES, INC.; FARMINGTON, CT. A CORP O

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PERRY, RALPH A.;REEL/FRAME:004080/0344

Effective date: 19801013

STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: EMERSON ELECTRIC CO. A CORP. OF MISSOURI, MISSO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EMHART INDUSTRIES, INC. A CORP. OF CONNECTICUT;REEL/FRAME:005691/0720

Effective date: 19910125